ChemistryThe dissociation constant of a weak acid is 10-6. Then the pH of 0.01 N of that acid is

The dissociation constant of a weak acid is 10-6. Then the pH of 0.01 N of that acid is

  1. A

    2

  2. B

    7

  3. C

    8

  4. D

    4

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    Solution:

    PH of a weak acid solution is given as follows

    large large {P^H} = {text{ }}frac{1}{2}left[ {{P^{{K_a}}} - log C_0} right]

    large Rightarrow {P^H} = {text{ }}frac{1}{2}left[ {6 + 2} right] = 4.

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